MIC5283

Linear Regulator

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

March 2012

M9999-030812-A

General Description

The MIC5283 high-performance linear regulator offers a

very-wide input operating voltage range, up to 120V DC,

and supplies an output current of up to 150mA.

Ideal for high input voltage applications such as industrial

and telecom, the MIC5283 offers ±3% initial accuracy,

extremely high-power supply rejection ratio (75dB at

10kHz) and an ultra-low quiescent current of 8µA. The

MIC5283 is optimized for high-voltage line transients,

making it ideal for harsh environment applications.

The MIC5283 is offered in both fixed output voltage (3.3V

or 5.0V) and adjustable output voltage (1.22V to 5.5V)

options.

The MIC5283 operates over a

40°C to +125°C

temperature range and is available in lead-free, RoHS-

compliant, ePad SOIC-8 and 3mm x 3mm MLF

®

packages.

Data sheet and support documentation are found on the

Features

 Wide input voltage range: 6V to 120V DC

 Ultra-low quiescent current: 8µA

 150mA guaranteed output current

 Adjustable output from 1.22V to 5.5V

 Stable with ceramic capacitors

 Ultra-high PSRR (75dB at 10kHz)

 Ultra-high line rejection (load dump)

 High output accuracy:

– ±3% initial accuracy

 Thermal-shutdown and current-limit protection

 Thermally-efficient, 8-pin ePad SOIC package

Applications

 Industrial applications

 Remote keyless entry power supply

 Telecom applications

 Off-line power supplies

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Typical Applications